5'-O-monomethoxytrityl-2'-deoxyadenylyl(3',5')(3'-O-tert-butyldimethylsilyl-2'-deoxyadenylyl)-S-methylphosphorothioate 在
苯硫酚 、
三乙胺 作用下,
以
1,4-二氧六环 为溶剂,
反应 12.0h,
以80%的产率得到Thiophosphoric acid O-[(2R,3S,5R)-5-(6-amino-purin-9-yl)-3-(tert-butyl-dimethyl-silanyloxy)-tetrahydro-furan-2-ylmethyl] ester O'-{(2R,3S,5R)-5-(6-amino-purin-9-yl)-2-[(4-methoxy-phenyl)-diphenyl-methoxymethyl]-tetrahydro-furan-3-yl} ester